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Finding the Fourth Proportional to 54,579.84, 81,801.60 and 23,378.88

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Solution

The fourth proportional to 54,579.84, 81,801.60 and 23,378.88 is: 35,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,579.84 : 81,801.60 = 23,378.88 : x
  2. Step 2: Convert to fraction form
    54,579.84/81,801.60 = 23,378.88/x
  3. Step 3: Cross multiply
    54,579.84x = 81,801.60 × 23,378.88
  4. Step 4: Simplify right side
    54,579.84x = 1,912,429,790.21
  5. Step 5: Solve for x
    x = 1,912,429,790.21/54,579.84
  6. Step 6: Final answer
    x = 35,039.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.